Home / 102,431.98-141,365.42-62,155.95

Finding the Fourth Proportional to 102,431.98, 141,365.42 and 62,155.95

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Solution

The fourth proportional to 102,431.98, 141,365.42 and 62,155.95 is: 85,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,431.98 : 141,365.42 = 62,155.95 : x
  2. Step 2: Convert to fraction form
    102,431.98/141,365.42 = 62,155.95/x
  3. Step 3: Cross multiply
    102,431.98x = 141,365.42 × 62,155.95
  4. Step 4: Simplify right side
    102,431.98x = 8,786,701,977.25
  5. Step 5: Solve for x
    x = 8,786,701,977.25/102,431.98
  6. Step 6: Final answer
    x = 85,780.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.